# 50+ Matrix MCQs with FREE PDF

We have the best collection of the Matrix MCQs and answer with FREE PDF. These Matrix MCQs will help you to prepare for any competitive exams like: BCA, MCA, GATE, GRE, IES, PSC, UGC NET, DOEACC Exams at all levels – you just have to practice regularly.

## Matrix MCQs

a b c

d e f

g h i

a) ihgfedcba

b) abcdefghi

#### 2. Which of the following don’t use matrices?

a) In solving linear equations

b) Image processing

c) Graph theory

d) Sorting numbers

#### 3. What is the order of a matrix?

a) number of rows X number of columns

b) number of columns X number of rows

c) number of rows X number of rows

d) number of columns X number of columns

Answer: number of rows X number of columns

a) Associative

b) Distributive

c) Commutative

#### 5. How do you allocate a matrix using a single pointer in C?(r and c are the number of rows and columns respectively)

a) int *arr = malloc(r * c * sizeof(int));

b) int *arr = (int *)malloc(r * c * sizeof(int));

c) int *arr = (int *)malloc(r + c * sizeof(int));

d) int *arr = (int *)malloc(r * c * sizeof(arr));

Answer: int *arr = (int *)malloc(r * c * sizeof(int));

#### 6. Matrix A when multiplied with Matrix C gives the Identity matrix I, what is C?

a) Identity matrix

b) Inverse of A

c) Square of A

d) Transpose of A

#### 7. Which of the following is an advantage of matrices?

a) Internal complexity

b) Searching through a matrix is complex

c) Not space efficient

d) Graph Plotting